Chess South Africa
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Chess South Africa
Roos, B (Benjamin)
Dob:
2016/04/27 (U10)
Gender:
Male
Chess SA id:
1160148677
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2024/06/15 (11 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1326.9
Current Weighted rating
1273.3
Current Weighted performance
1299.2
Current official/published rating (highest between Raw, WR and WP)
1326.9
Current highest rating achieved
1326.9
Current floor (min rating allowed)
826.9
Current K-factor
36
Games played this month
5
Score (S)
4.5
Expected score (We)
2.63
Difference (S-We)
1.76
Current Raw change (no limits, including tournament time weight)
63.3
Current min/max change allowed (with limits)
±138.4
Current Raw change used (final)
63.3
Projected new Raw rating
1390.2
Projected new Weighed rating
1173.4
Projected new Weighted performance
1417.5
Projected new final Raw rating (if new WP > new Raw)
1417.5
Projected new highest rating
1417.5
Projected new floor
917.5
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1417.5
Projected effective change (new Official - current Official)
+90.6
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1329.4
Current Weighted rating
1276.2
Current Weighted performance
1299.2
Current official/published rating (highest between Raw, WR and WP)
1329.4
Current highest rating achieved
1329.4
Current floor (min rating allowed)
829.4
Current K-factor
36
Games played this month
5
Score (S)
4.5
Expected score (We)
2.66
Difference (S-We)
1.84
Current Raw change (no limits, including tournament time weight)
66.2
Current min/max change allowed (with limits)
±137.9
Current Raw change used (final)
66.2
Projected new Raw rating
1395.6
Projected new Weighed rating
1176.1
Projected new Weighted performance
1417.5
Projected new final Raw rating (if new WP > new Raw)
1417.5
Projected new highest rating
1417.5
Projected new floor
917.5
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1417.5
Projected effective change (new Official - current Official)
+88.1
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
s
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Tournament:
2024 Elise Steenkamp Open Chess Tournament (Bishops)
Start:
2024/06/15
End:
2024/06/15
Host:
GTP
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
5
Games:
5
Score:
4.5
Main rating:
1326.9
Rating gain/loss:
63.3
Type rating:
1329.4
Rating gain/loss:
66.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
5
2024 Elise Steenkamp Open Chess Tournament (Bishops)
2024/06/15
2024/06/15
Tshwane (GTP)
Standard
90
0.94
5
5
4.5
1326.9
1329.4
Analysis
4
2024 KSNG CHess Academy Open Tournament (E)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1306.6
1304.9
Analysis
3
2024 Tshwane Chess AHS Open Chess Tournament (E)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1306.6
1307.4
Analysis
2
2024 Tshwane Chess OPEN Registration Tournament (E)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1281.8
1284.4
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U8)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1281.8
1284.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
10
2024 Elise Steenkamp Open Chess Tournament (Bishops)
2024/06/15
2024/06/15
Tshwane (GTP)
Standard
90
0.94
5
5
4.5
1326.9
1329.4
Analysis
9
2024 KSNG CHess Academy Open Tournament (E)
2024/04/06
2024/04/06
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1306.6
1304.9
Analysis
8
2024 Tshwane Chess AHS Open Chess Tournament (E)
2024/02/24
2024/02/24
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1306.6
1307.4
Analysis
7
2024 Tshwane Chess OPEN Registration Tournament (E)
2024/01/27
2024/01/27
Tshwane (GTP)
Standard
60
0.83
5
5
3.5
1281.8
1284.4
Analysis
6
2024 Gauteng Inter-Region Chess Championship (U8)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
3.0
1281.8
1284.4
Analysis
5
Lardies Open Tournament 2023 (F)
2023/10/28
2023/10/28
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1267.6
1276.5
Analysis
4
2023 Etienne Lewis Closed Tournament (U8)
2023/08/26
2023/08/26
Tshwane (GTP)
Standard
90
0.94
6
6
4.0
1235.1
1243.0
Analysis
3
2023 Lubowski Open Tournament (F)
2023/06/24
2023/06/24
Tshwane (GTP)
Standard
90
0.94
5
5
2.5
1241.9
1251.6
Analysis
2
Tuks Junior Developmental Chess Tournament 2023 (Green)
2023/03/18
2023/03/18
Tshwane (GTP)
Standard
60
0.83
5
5
4.5
1165.5
1157.2
Analysis
1
2023 Tshwane Chess Open Registration Tournament (F)
2023/01/28
2023/01/28
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
25
17
2
6
18.0
72.0
187.0
1222.4
1409.4
White
12
9
0
3
9.0
75.0
212.5
1209.4
1421.9
Black
13
8
2
3
9.0
69.2
163.5
1234.4
1397.9
Standard
All
25
17
2
6
18.0
72.0
187.0
1222.4
1409.4
White
12
9
0
3
9.0
75.0
212.5
1209.4
1421.9
Black
13
8
2
3
9.0
69.2
163.5
1234.4
1397.9
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
51
31
5
15
33.5
65.7
133.3
1219.2
1352.5
White
24
15
1
8
15.5
64.6
124.0
1211.3
1335.3
Black
27
16
4
7
18.0
66.7
141.7
1226.2
1367.8
Standard
All
51
31
5
15
33.5
65.7
133.3
1219.2
1352.5
White
24
15
1
8
15.5
64.6
124.0
1211.3
1335.3
Black
27
16
4
7
18.0
66.7
141.7
1226.2
1367.8
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1160157441
Swart, E (Eben)
3
3.0
3
0
0
100.0
1276.5
425.0
1701.5
View list
2
2160158380
Grobbelaar, M (Mari)
3
1.5
1
1
1
50.0
1261.5
0.0
1261.5
View list
3
1160147672
Rocher, G (Gideon)
3
1.0
1
0
2
33.3
1278.8
-141.7
1137.1
View list
4
2160157440
Moggee, E (Emily)
2
2.0
2
0
0
100.0
1261.8
425.0
1686.8
View list
5
2160162781
Westermann, Z (Zelri)
2
2.0
2
0
0
100.0
1316.8
425.0
1741.8
View list
6
1160157439
Lekalakala, T (Tshimologo)
2
1.0
1
0
1
50.0
1238.5
0.0
1238.5
View list
7
1160151829
Erdogan, D (Demir)
2
1.0
0
2
0
50.0
1203.7
0.0
1203.7
View list
8
1160148081
Wiehahn, L (Luke)
2
0.0
0
0
2
0.0
1270.8
-425.0
845.8
View list
9
1150190422
Li, J (Jiming)
1
1.0
1
0
0
100.0
1267.6
425.0
1692.6
View list
10
1150152739
Jansen Van Vuuren, G (Griffin)
1
1.0
1
0
0
100.0
1306.6
425.0
1731.6
View list
11
1160300016
Matjila, G (Gosiame)
1
1.0
1
0
0
100.0
1306.6
425.0
1731.6
View list
12
1160152256
Luyt, E (Erzick)
1
1.0
1
0
0
100.0
1165.5
425.0
1590.5
View list
13
1160152254
Hugo, V (Victor)
1
1.0
1
0
0
100.0
1165.5
425.0
1590.5
View list
14
2150143025
Haupt, N (Nia)
1
1.0
1
0
0
100.0
1306.6
425.0
1731.6
View list
15
1160154139
Haupt, D (Dawid)
1
1.0
1
0
0
100.0
1241.9
425.0
1666.9
View list
16
1160147138
Gresse, J (Jayden)
1
1.0
1
0
0
100.0
1281.8
425.0
1706.8
View list
17
1160153451
Fredericks, M (Matai)
1
1.0
1
0
0
100.0
1235.1
425.0
1660.1
View list
18
1150136650
Coetzee, R (Riko)
1
1.0
1
0
0
100.0
1281.8
425.0
1706.8
View list
19
1160153976
Benjamin, L (Liyabona)
1
1.0
1
0
0
100.0
1281.8
425.0
1706.8
View list
20
2150301742
Niemand, O (Olivia)
1
1.0
1
0
0
100.0
1306.6
425.0
1731.6
View list